Steam-trap



Patented lan. ID, !899.

`J. B. MORGAN.

ST E A M T R A P (Application filed Aug. 25, 1E 398.)

(No Model.)

MENTOR THE Nonms ?mn co, FNoTaL'-uo.. WASHINOTDN. o. c.

and useful Improvements in Steam-Traps, of

- &ES

UNITED STATES PATENT OFFICE.

JOHN B. MORGAN, OF QUINCY, MASSACHUSETTS, ASSIGNOR TO J. CURTIS KIMBALL, OF SUFFOLK COUNTY, MASSAOHUSETTS.

STEAM-TRAP.

SPECIFICATION forming part of Letters Patent No.,617,493, dated January 10, 1899. Application filed August 25, 1898.. Serial No. 689,&81. `(No model.)

To all whom it may concerm Be it known that I, JOHN B. MORGAN, of

Quincygin the county of Norfolk and State of Massachusetts, have invented certain new which the following is a specification.

lVlyimprovements relate especially to devices forautomatically removing the water of condonsation from stean drums, tanks, or ra dators used in stean heating and circulating V apparatus, the objects being. to simplify construction, to avoid backpressure, and to the devices readily adjustable.

My invention is embodied in a recessed casting or other body formed with a chamber to receive the water of condensation and provided with a vertically-movable bottom having a reduced aperture for passage of a limited amount of water and with means for varying the size of said aperture at will. The

movable bottom of the charnber acts as a valve and is supportedby a pivoted lever, upon the opposite end of which an adj ustable spring acts to counterbalance the weight, of water accumulating in the chamber and to permit its discharge when excessive. The

construction is such that the valve or movable bottom oannot yield beyond certain limits in order that it may not become displaced. A trap or seal is provided, located as desired, but preferably formed as an S-shaped passage through the plug which closes the sediment-chamber at the bottom of the recessed casting, AyaCuum-pump serves to draw the water downwardly from the chambers of said casting, and a supplementary drip-pipe leads to the drain for use in theevent of accident to the pump. A glass Water-column connects the two chambers of the casting, so as to indicate if any obstruction exists in them.

Ido not intend by the use of the word casting herein to limit myself to a chambered body formed of cast metal, although I consider that material best adapted to my purpose.

The drawings illustrate my invention as applied to one of a series of steam drying-drums, such as are used in paper-making.

Figure 1 is a Vertical section, partly in ele- Vation, showing some details of construction. Fig. 2 is a detail modification of the plug of the sediment-chamber,

'culiar to my invention. separated by a vertically-moving valve F, v forming a yielding bottom for the chamber C tends down almost to the bottom of the drum to enter' the water oi' condensation and draw' it 'therefrom either into a trap B and thence through a pipe Z) into a water-chamber C or tosaidchamberdirect.` Avacuum-pump P,

`suitably located, acts to draw oit the water in addition to the siphon-like arrangement of the apparatus.

The water-chamber C and sedimentchamber D are divisions of a recessed casting E pe; These chambersare into which the water first enters. A lever G, pivoted about centrally and located in chamber D, bears at one end beneath the valve F,

while its other end is connected by a verti-. cal rod h to a spring ll, which is adjusted t o counterbalance the valve and the varying weight' thereon. Variations in the tension of the spring are produced by an adjustingnut l. The spring, as shown, is located in a chamber J, formed in the casting E, and furnished with a screw-cap j to give an air-tight joint. It is obvious that the lever and spring may be differently arranged without departingfrom the spirit of my invention.` y

In order to permit a minute quantity of water to pass at all times without movement of the valve F, I form a reduced aperturef through or at one side of the valve, and I also provide for varying the` size of such aperture by an adjusting-screw K, the tip of which enters more or less into the aperture, as in Fig. 1. A suitable packing prevents the entrance of air, and an external cap L may be screwed upon a boss surrounding the screw K for further security.

'The bottom of the sediment-chamber D is a removable plug M, to which the outlet-pipe Nis connected. This plug may be of the form shown in Fig. 1, but is preferably made as in Fig. 2, in which the central portion of the plug is raised. and has an S-shaped passage m through it, forming a trap or water seal, while any sediment in the water may IOO - having at top a tubular connection with the water-chamber C and at bottom a like connection with the sediment-ohamber D. The connecting-tubes are provided with cocks o, and when these are opened the height of water or the current through tube O will show whether or not the passage from either chamber is obstructed. A supplenentary drippipe Q, provided with a self-closing valve at q, furnishes outlet for the water in case the pump P becomes inoperative.

I claim as my invention- 1. In a steam heating and circulating apparatus, the chanber O arranged to receive the water of condensation and provided with the valve-like movable bottom F, formed With a reduced aperture f, in combination with a spring II having an adjusting-screw 4 to regulate its tension, and with a supporting-1ever fulcrumed between said valve or vieiding bottom and said spring, substantially as set forth.

2. In a stean heating and circulating apparatus, the water-chamber C having the vertically-movahle valve or bottom F with an aperture for the passage of a limited quantity of water andprovided with an adjusting device K adapted to vary the size of said aperture and thereby to regulate the flow of water through it, in combination with a pivoted lever'bearing on said valve or bottom and with a spring serving to hold said lever in working position and permit it to yield as required, substantially as set forth.

3. In a steam heating and circulating apparatus, the recessed bodyE formed with the chambers C, D and J, said chambers C and D being separated by the yielding valve F and said chamber J having the spring I-I therein, in combination with the pivoted lever G in the chamber D and adapted to apply the pressure of said spring to the support of said valve, substantially as set forth.

In testinony Whereof I have aflixed my signature in presence of two witnesses.

JOHN B. MORGAN.

XVitnesses;

A. II. SPENCER, JAs. P. PRINCE. 

